.go_bang_box {
  margin-top: 50px;
  box-shadow: 5px 5px 5px #b9b9b9, -2px -2px 2px #efefef;
  header {
    margin-top: 20px;
    padding: 0 20px;
    .tip {
      min-width: 60px;
      transition: all 0.2s;
    }
  }
  footer {
    margin-bottom: 20px;
  }
}
#go_bang {
  cursor: pointer;
}
